books.google.com - This guide covers the fine details that make up yoga - from the length and variation of postures, to the correct method of breathing. It describes over 200 exercises and also covers the mental and spiritual aspects of yoga, and the principles of a healthy diet....https://books.google.com/books/about/Yoga_Self_Taught.html?id=sz8ZojYOdQ0C&utm_source=gb-gplus-shareYoga Self-Taught